74 research outputs found

    A mean ergodic theorem for actions of amenable quantum groups

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    We prove a weak form of the mean ergodic theorem for actions of amenable locally compact quantum groups in the von Neumann algebra setting.Comment: 9 page

    Intersecting Jones projections

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    Let M be a von Neumann algebra on a Hilbert space H with a cyclic and separating unit vector \Omega and let \omega be the faithful normal state on M given by \omega(\cdot)=(\Omega,\cdot\Omega). Moreover, let {N_i :i\in I} be a family of von Neumann subalgebras of M with faithful normal conditional expectations E_i of M onto N_i satisfying \omega=\omega\circ E_i for all i\in I and let N=\bigcap_{i\in I} N_i. We show that the projections e_i, e of H onto the closed subspaces \bar{N_i\Omega} and \bar{N\Omega} respectively satisfy e=\bigwedge_{i\in I}e_i.This proves a conjecture of V.F.R. Jones and F. Xu in \cite{JonesXu04}

    On the tensor product of weights on W*-algebras

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    Continuous and discrete flows on operator algebras

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    Let (N,R,θ)(N,\R,\theta) be a centrally ergodic W* dynamical system. When NN is not a factor, we show that, for each t0t\not=0, the crossed product induced by the time tt automorphism θt\theta_t is not a factor if and only if there exist a rational number rr and an eigenvalue ss of the restriction of θ\theta to the center of NN, such that rst=2πrst=2\pi. In the C* setting, minimality seems to be the notion corresponding to central ergodicity. We show that if (A,R,α)(A,\R,\alpha) is a minimal unital C* dynamical system and AA is either prime or commutative but not simple, then, for each t0t\not=0, the crossed product induced by the time tt automorphism αt\alpha_t is not simple if and only if there exist a rational number rr and an eigenvalue ss of the restriction of α\alpha to the center of AA, such that rst=2πrst=2\pi.Comment: 7 page

    Indicatorii principali de sănătate reproductivă umană

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    În lucrare sunt expuşi indicatorii situaţiei demografi ce atât în lume, cât şi în Republica Moldova. Se analizează situaţia sănătăţii reproductive şi indicatorii principali ai pierderilor reproductive (mortalitatea maternă, perinatală, avortul), incidenţa, cauzele şi structura acestor indicatori. Sunt făcute unele propuneri în ceea ce priveşte ameliorarea situaţiei în domeniul sănătăţii reproductive

    Услуги здравоохранения, дружественные к молодежи через призму стандартов качества

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    IMSP Institutul Mamei şi CopiluluiBackground: The Youth Friendly Health Services in Moldova (YFHS) are focused on real needs and age peculiarities particularities of adolescents and teenagers in their health and development priority interest, from medical and psycho-social positions. YFHS are contribute significantly to solve the priority health issues of young people: STI/HIV/ AIDS, unwanted pregnancy, mental health problems as a result of substance abuse, psychological and emotional disturbances of personality, health problems as a result of violence, disturbances of nutrition, particularly malnutrition, developmental disorders during puberty. Records provided by the WHO shows that access to quality health services for young people with a holistic approach offered according to the standards of youthfriendly health services, is one of the major factors for the protection of young people across health issues, including sexual and reproductive health. Aim of the study: Evaluation of quality of the youth-friendly health services according to the quality standards of YFHS in Moldova at the beginning of their implementation. Materials and methods. Following instruments were used for the study: 1-questionnaire for young beneficiaries of YFHC, 2-questionnaire for young people in the community (service coverage tool), 3 - questionnaire for manager of YFHC, 4- questionnaire for providers of YFHS, 5 - observation sheet of providing YFHS. Result. The beneficiary of YFHS is most commonly a teenager aged 15-19 years, who is a school boy/girl or a student, most commonly a girl, a boy rarely, mostly unmarried; the beneficiary of reproductive health offers (RHO) is in absolute majority of cases is a girl aged between 19 and 24 years, more often married or divorced. About 37% of the specialists included in the study did not receive training in YFHS, adolescent health and development. At the initial stage of implementation of quality standards, the evaluated institutions meet these standards in about 57%, ranging from 49% to60% in YFHS and RHO. Conclusions: The study showed the portraits of the beneficiaries from the institutions that provide YFHS.To increase the quality of services provided to the beneficiaries in the evaluated institutions, it is necessary to strengthen human potential through training specialists of YFHS in adolescent health and development. To ensure sustainability of education is necessary to introduce topics related to adolescent health and development in undergraduate and postgraduate curricula. At the initial stage of implementation of quality standards, the evaluated institutions meet these standards in about 57%, ranging from 49% to 60% in YFHS and in reproductive health offices.Введение. Услуги здравоохранения дружественные к молодежи, в Молдове основаны на реальных потребностях здоровья и развития подростков и молодежи, учитывая их возрастные особенности, как с медицинской, так и с психо-социальной позиции. Данные, предоставляемых ВОЗ, показывают, что доступ к медицинским услугам, дружественным к молодежи, в соответствии со стандартами качества, является одним из основных факторов защиты молодых людей от многих проблем здоровья, включая сексуальное и репродуктивное здоровье. Цель исследования: Оценка качества услуг дружественных к молодежи в соответствии со стандартами качества УЗДМ в Молдове до их внедрения в практику. Материалы и методы. В исследовании были использованы следующие инструменты: 1 – опросник для молодых клиентов УЗДМ, 2 – опросник для молодых людей на улице (инструмент охвата услугами), 3 – опросник для руководителей УЗДМ, 4 – опросник для поставщиков УЗДМ, 5 – анкета наблюденияза предоставлениемУЗДМ. Результаты:Исследование выявило портреты клиентов учреждений, которые предоставляют УЗДМ. Клиентами ЦЗДМ чаще всего являются подростки,средний возраст которых от 15 до 19 лет, школьники / студенты, чаще всего незамужние девушки. Клиентами кабинетов репродуктивного здоровья в абсолютном большинстве случаев являютсямолодые женщины в возрасте 19-24 лет, чаще – состоящие в браке или разведенные.Около 37% опрошенных поставщиков УЗДМ не получили подготовку в области УЗДМ, здоровья и развития подростков. На начальных этапах внедрения стандартов качества, данные учреждения отвечают этим стандартам на 57%, от 49% (кабинеты репродуктивного здоровья) до 60% (центры здоровья, дружественные к молодежи). Выводы: Исследование выявило портреты клиентов учреждений, которые предоставляют УЗДМ. Для повышения качества УЗДМ необходимо повышение квалификации персонала путем пересмотра университетской и постуниверситетской подготовки с внедрением модулей по здоровью и развитию подростков. На начальном этапе внедрения стандартов качества УЗДМ, учреждения выполняют стандарты качествавсреднем на 57%, от 49% в кабинетах репродуктивного здоровьяи до 60% в ЦЗДМ

    Trends in air temperature and atmospheric precipitation in Botoşani between 1961 and 2017

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    Air temperature and precipitations are major factors affecting the climate of a certain place. They define the basic matrix of the climate, and their evolution are of interest for the whole of both human and scientific community. The purpose of the present study is to highlight the sign and the magnitude of the trend in the air temperature at Botoşani city weather station for the whole period 1961-2017, and for both its major subdivisions (1961-1990 and 1991-2017, respectively) throughout different temporal subsets (from the level of an average year to the level of a month). Besides air temperature, we determined the evolutive trend in the amount of rainfall using a similar methodology (based mainly on the Mann- Kendall and t tests).Following our approach, we showcased the thermal and pluviometric reality at Botoşani, which is in a continuous change (as for the temperature values) or in a relatively dynamic balance (with respect to the amount of precipitations). More precisely, at Botoşani, against an annual average temperature of 9.4°C and an annual average of precipitations of 569.0 mm, after the year 1961 and mostly after 1990, the tendency was positive, which indicates an increase in air temperature. From a thermal point of view, considered annualy, seasonally and by warm and cold seasons (excepting autumn, with an insignificant increase), air temperature displayed a representative increase in value over the assessed period (1961-2017). On the whole, the annual temperature values increased by 0.32°C / decade, which presents a maximum statistical significance. Annual amount of rainfall increased over the period 1961 – 2017 by 4.46--5.35 mm/ decade, but this was not statistically significant.</p

    Aplicarea metodelor invazive în diagnosticul prenatal: retrospectiva rezultatelor pe anii 2009-2011

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    Indentifi carea precoce a posibilelor riscuri în ceea ce privesc malformaţiile congenitale ale fătului, astăzi, a devenit un obicei comun în societăţile dezvoltate, iar necesitatea unui diagnostic prenatal veridic, creşte odată cu apariţia tendinţei de a avea copil la vârsta după 35 de ani. Din 1298 gravide incluse în studiu, care pe parcursul anilor 2009-2011 au fost supuse diagnosticului prenatal invaziv, în 28 cazuri au fost depistate aberaţii cromozomiale la făt. Totodată, în perioada respectivă, au fost depistaţi 202 nounăscuţi cu malformaţii congenitale, iar circa 70% copii cu sindromul Down s-au născut de la mame cu vârsta după 35 de ani. Respectarea cu stricteţe a prevederilor Ghidului Naţional de Perinatologie, unde este specificat că gravida după 35 de ani face parte din grupul de risc, ar reduce substanţial de numărul malformaţiilor congenitale depistate postnatal, cu toate că în curs de trei ani s-a atestat o creştere succesivă a solicitării diagnosticului prenatal invaziv

    Trends in air temperature and atmospheric precipitation in Botoşani between 1961 and 2017

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    Air temperature and precipitations are major factors affecting the climate of a certain place. They define the basic matrix of the climate, and their evolution are of interest for the whole of both human and scientific community. The purpose of the present study is to highlight the sign and the magnitude of the trend in the air temperature at Botoşani city weather station for the whole period 1961-2017, and for both its major subdivisions (1961-1990 and 1991-2017, respectively) throughout different temporal subsets (from the level of an average year to the level of a month). Besides air temperature, we determined the evolutive trend in the amount of rainfall using a similar methodology (based mainly on the Mann- Kendall and t tests). Following our approach, we showcased the thermal and pluviometric reality at Botoşani, which is in a continuous change (as for the temperature values) or in a relatively dynamic balance (with respect to the amount of precipitations). More precisely, at Botoşani, against an annual average temperature of 9.4°C and an annual average of precipitations of 569.0 mm, after the year 1961 and mostly after 1990, the tendency was positive, which indicates an increase in air temperature. From a thermal point of view, considered annualy, seasonally and by warm and cold seasons (excepting autumn, with an insignificant increase), air temperature displayed a representative increase in value over the assessed period (1961-2017). On the whole, the annual temperature values increased by 0.32°C / decade, which presents a maximum statistical significance. Annual amount of rainfall increased over the period 1961 – 2017 by 4.46--5.35 mm/ decade, but this was not statistically significant
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